Update routes.json

docs/assets/data/routes.json

@@ -99,7 +99,11 @@
                             "filepath": "tutorials/legacy/photoshop_texture_editing.md"
                         }
                     ]
-                }
+                },
+                {
+                    "name": "How to create a pull-request",
+                    "filepath": "tutorials/make-a-pr.md"
+                },
             ]
         },
         {